As per the given question,
Evaluate: $\int \cos x \sqrt{4-\sin ^{2} x} d x$
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Exercise 19.28
Evaluate: $\int \sqrt{1+x-2 x^{2}} d x$
As per the given question,
Evaluate: $\int \sqrt{x-x^{2}} d x$
As per the given question,
Evaluate: $\int \sqrt{x^{2}+x+1} d x$
As per the given question,
Evaluate: $\int \sqrt{3+2 x-x^{2}} d x$
As per the given question,